Home / 78,272.39-108,015.93-44,280.20

Finding the Fourth Proportional to 78,272.39, 108,015.93 and 44,280.20

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Solution

The fourth proportional to 78,272.39, 108,015.93 and 44,280.20 is: 61,106.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,272.39 : 108,015.93 = 44,280.20 : x
  2. Step 2: Convert to fraction form
    78,272.39/108,015.93 = 44,280.20/x
  3. Step 3: Cross multiply
    78,272.39x = 108,015.93 × 44,280.20
  4. Step 4: Simplify right side
    78,272.39x = 4,782,967,253.63
  5. Step 5: Solve for x
    x = 4,782,967,253.63/78,272.39
  6. Step 6: Final answer
    x = 61,106.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.